suite: opik.cspHeaderValue helper (Content-Security-Policy)

# Exercises the `opik.cspHeaderValue` helper (templates/_helpers.tpl) through the
# frontend nginx ConfigMap (templates/configmap-frontend-nginx.yaml). The helper
# builds the Content-Security-Policy header value from the contentSecurityPolicy
# map, sorting directives alphabetically and space-joining each directive's
# sources. The header is also gated behind the legacy csp.enabled flag
# (csp = Content-Security-Policy).
#
# NB: helm-unittest `set` deep-merges into the default contentSecurityPolicy in
# values.yaml rather than replacing it, so these tests assert against the default
# Content-Security-Policy (sort order + joined sources) rather than a hand-built
# full string.
templates:
  - templates/configmap-frontend-nginx.yaml

documentSelector: &nginx
  path: metadata.name
  value: opik-frontend-nginx

tests:
  - it: emits the default Content-Security-Policy with directives sorted alphabetically
    documentSelector: *nginx
    asserts:
      # base-uri (default's first directive) precedes default-src, which
      # precedes worker-src (its last) — proving alphabetical ordering.
      - matchRegex:
          path: data["default.conf.template"]
          pattern: 'Content-Security-Policy "base-uri .*; default-src .*; worker-src .* always;'

  - it: space-joins multiple sources within a directive
    documentSelector: *nginx
    asserts:
      - matchRegex:
          path: data["default.conf.template"]
          pattern: "script-src 'self' 'unsafe-inline' 'unsafe-eval'"

  - it: omits the Content-Security-Policy header when csp.enabled is false (legacy flag)
    set:
      component.frontend.csp.enabled: false
    documentSelector: *nginx
    asserts:
      - notMatchRegex:
          path: data["default.conf.template"]
          pattern: "add_header Content-Security-Policy"

  - it: renders the Content-Security-Policy header when csp.enabled is true
    set:
      component.frontend.csp.enabled: true
    documentSelector: *nginx
    asserts:
      - matchRegex:
          path: data["default.conf.template"]
          pattern: "add_header Content-Security-Policy"

  - it: omits the Content-Security-Policy header when contentSecurityPolicy is empty
    set:
      component.frontend.contentSecurityPolicy: null
    documentSelector: *nginx
    asserts:
      - notMatchRegex:
          path: data["default.conf.template"]
          pattern: "add_header Content-Security-Policy"